save project

diy1.py

@@ -5,10 +5,12 @@
 import turtle
 import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
-# 请创造师在下面接着创作
+screen = turtle.Screen()
+screen.bgcolor("black")
+color = ["green","red","yellow","orange"]
 for i in range(300):
 for i in range(300):
+    pen.pencolor(color[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.left(91)
     pen.left(91)
-# 隐藏画笔，保存画布
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
\ No newline at end of file